Christine S. Beck, president and chief executive of the Gesu board, said the school would be able to draw $6,000 a year from each of the endowments to fund the full annual cost of educating a student.
"We are extremely grateful that the Kims and other donors understand the true value of investing in education for our children, who face many daunting obstacles to learning, yet thrive thanks to our caring environment, high expectations, and belief that every child can learn," Beck said.
The Kim Family Foundation's pledge will go toward Gesu's campaign to raise $8 million to endow multiyear scholarships for nearly all of its 455 students by 2013.
The school enrolls children from prekindergarten through eighth grade. Tuition is $2,400.
The Kim Family Foundation, which is based in Paoli, has been supporting Gesu for years. It gave $1 million in 2006 toward the school's $12 million capital campaign to renovate the building at 1700 W. Thompson St. and outfit the James and Agnes Kim Computer Center.
Amkor, which is involved in the semiconductor industry, moved from West Chester to Chandler, Ariz., five years ago.
When the Archdiocese of Philadelphia closed the Gesu parish in 1993, business leaders and two religious orders - the Jesuits and the Sisters, Servants of the Immaculate Heart of Mary - joined to keep the school open as a private Catholic school for children in its inner-city neighborhood.
The school says that more than 90 percent of Gesu alumni graduate from high school in four years, and that at least 60 percent continue with postsecondary education.
Contact staff writer Martha Woodall at 215-854-2789 or email@example.com.